Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > News > Counterfeiting Countermeasures

June 11th, 2007

Counterfeiting Countermeasures

Abstract:
He sees a lot of potential in nanotechnology, including nanocrystals that can be used to make pigments that aren't easy to duplicate and have spectral properties that can be easily verified by machine. "Unlike regular organic pigment molecules," he explains, nanocrystal pigments "have very narrow absorption windows." Nanocrystals made of semiconductor materials such as cadmium telluride and zinc sulfide or of metals such as gold and silver are already available. Color can be tuned by changing the size of the particles.

The committee also thinks lithography on a minute scale shows promise as a deterrent, Trevor says. Techniques including dip-pen lithography—in which the stylus of an atomic force microscope is used as a pen—could be used to print currency with text, images, or other patterns with dimensions in the nanometer to micrometer range. Such features could be viewed with a scanning optical microscope.

Source:
pubs.acs.org

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

Miscellaneous

Editorial: Choices for Congress September 9th, 2010

Stephen Hawking - 'Don't Talk to Aliens' April 26th, 2010

It’s about damn time: Medvedev bans nanodemocracy April 15th, 2010

Savor maple syrup time in Ohio: Travel in 3s February 20th, 2010

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals

Stanford team achieves 'holy grail' of battery design: A stable lithium anode - Engineers use carbon nanospheres to protect lithium from the reactive and expansive problems that have restricted its use as an anode July 27th, 2014

Iranian Scientists Produce Reusable Nanoadsorbent to Detect Sulfamide in Chicken July 27th, 2014

Silicene Labs Announces the Launch of 2D Materials Briefing Book™ and 2D Materials Road-Heat Map™: Contributors Include One of the World's Foremost 2D Materials Scientists July 25th, 2014

New imaging agent provides better picture of the gut July 25th, 2014

Human Interest/Art

Japanese gold leaf artists worked on a nano-scale: Study demonstrates X-ray fluorescence spectroscopy is a non-destructive way to date artwork July 3rd, 2014

Harry Potter-style invisibility cloaks: A real possibility next Christmas? Forget socks and shaving foam, the big kids of tomorrow want an invisible cloak for Christmas December 19th, 2013

Chicago Awareness Organization First Not-for-Profit to Sponsor Dog Training to Detect Ovarian Cancer Odorants December 12th, 2013

ZEISS Microscopes used to create images for Art Exhibit at Midway Airport: Art of Science: Images from the Institute for Genomic Biology October 25th, 2013

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More














ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE